For my second computational media project I worked with Brian Clifton to make this prism extruding thingy. We were inspired by the code we found here.
Click here to see the sketch on openprocessing.org. You can mouse over to extrude the triangles, click them to change their color, or move the slider (or mouse wheel) to change their max height.
Here’s a vid:
[vimeo https://vimeo.com/74787712 w=640]
And here’s the code:
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int grid = 20; float b = 0; ArrayList<Prism> prisms; //slider variables boolean dragging = false; // Is the slider being dragged? boolean rollover = false; // Is the mouse over the slider? // Rectangle variables for slider float rx = 50; float ry = 500; float rw = 10; float rh = 100; // Start and end of slider float sliderStart = 70; float sliderEnd = 570; float offsetX = 0; // Offset for dragging slider void setup() { size(640, 640); prisms = new ArrayList<Prism>(); for (int y = 0; y < width; y += grid) { for (int x = 0; x < height; x += grid) { float r = random(1); color c = color(noise(y, x)*255, noise(y, x)*200, noise(y, x)*55, random(255)); if (r < 0.25) { prisms.add(new Prism(x, y, x, y+grid, x+grid, y+grid, c /*v*/)); // add a new instance of the class Prism to the arrayList prisms. } else if (r >= 0.25 && r < 0.5) { c = color(noise(r)*105, noise(r)*200, noise(r)*155, random(255)); prisms.add(new Prism(x, y, x+grid, y, x, y+grid, c /*v*/)); } else if (r >= 0.5 && r < 0.75) { prisms.add(new Prism(x, y, x+grid, y, x+grid, y+grid, c /*v*/)); } else { prisms.add(new Prism(x+grid, y, x+grid, y+grid, x, y+grid, c /*v*/)); } } } } void draw() { background(255); for (int i = 0; i < prisms.size(); i++) { prisms.get(i).display(); } b = (int) map(rx, sliderStart, sliderEnd - rw, 2, 6); noStroke(); fill(color(255, 255, 255, 220)); rect(50, 480, 540, 140); float d = sliderStart; while (d < sliderEnd) { for (float h = -10; h > -100; h = h-2.71) { fill(color(255, 0, 0, 60)); noStroke(); rect(d, 600, 10, h); d = d+14.848; } } if (dragging) { rx = mouseX + offsetX; } // Keep rectangle within limits of slider rx = constrain(rx, sliderStart, sliderEnd - rw); stroke(0); if (dragging) { fill(color(255, 77, 90)); } else { fill(color(255, 128, 137)); } // Draw rectangle for slider noStroke(); rect(rx, ry, rw, rh); } void mousePressed() { // Did I click on slider? if (mouseX > rx && mouseX < rx + rw && mouseY > ry && mouseY < ry + rh) { dragging = true; // If so, keep track of relative location of click to corner of rectangle offsetX = rx - mouseX; } } void mouseReleased() { // Stop dragging dragging = false; for (int i = 0; i < prisms.size(); i++) { if (prisms.get(i).should_grow()) { prisms.remove(i); } } } void mouseWheel(MouseEvent event) { float e = event.getAmount(); rx -= e; } class Prism { int x1, x2, x3, y1, y2, y3, max_height, current_height, desired_height, x_offset, current_x_offset, desired_x_offset, mouseRange; color c; Prism(int tempx1, int tempy1, int tempx2, int tempy2, int tempx3, int tempy3, color tempcolor) { x1 = tempx1; y1 = tempy1; x2 = tempx2; y2 = tempy2; x3 = tempx3; y3 = tempy3; c = tempcolor; max_height = (int) random(100); current_height = 1; current_x_offset = 0; desired_x_offset = 0; mouseRange = (int) random(10, 50); x_offset = (int) random(30, 100); } boolean should_grow() { //needs to be fixed because some prisms aren't getting picked up if (mouseX > x1 - mouseRange && mouseX < x1 + grid + mouseRange && mouseY > y1 - mouseRange && mouseY < y1 + grid + mouseRange) { return true; } else { return false; } } void change_height() { if (current_height < desired_height) { current_height += b; } else if (current_height > desired_height) { current_height -= 1; } if (current_x_offset < desired_x_offset) { current_x_offset += b; } else if (current_x_offset > desired_x_offset) { current_x_offset -= 1; } } void change_color() { c = color(random(255), random(255), random(255), random(255)); } void display() { fill(c); if (should_grow()) { desired_height = max_height + int(b) *20; desired_x_offset = x_offset; } else { desired_height = 0; desired_x_offset = 0; } noStroke(); triangle(x1, y1, x2, y2, x3, y3); if (current_height > 0 || current_x_offset > 0) { stroke(255); quad(x1, y1, x2, y2, x2 - current_x_offset, y2 - current_height, x1 - current_x_offset, y1 - current_height); quad(x1, y1, x3, y3, x3 - current_x_offset, y3 - current_height, x1 - current_x_offset, y1 - current_height); quad(x2, y2, x3, y3, x3 - current_x_offset, y3 - current_height, x2 - current_x_offset, y2 - current_height); triangle(x1 - current_x_offset, y1 - current_height, x2 - current_x_offset, y2 - current_height, x3 - current_x_offset, y3 - current_height); } change_height(); } } |